Computer Audio Asylum

• Re: USB to S/PDIF adapter ? ...can you name some? - audioengr 15:38:42 10/30/04 (0)
  In Reply to: USB to S/PDIF adapter ? ...can you name some? posted by N.B.C. on October 30, 2004 at 13:18:59:

  Can I name some? Yes, there are two:

  M-Audio Transit - best for PC's

  Edirol UA-1D - best for iMAC

  The transit is only Toslink out, but I modify it to have coax out. I also have a version that uses a wall-wart power supply and Superclock2 for a really jitter-free clock.
  
  

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• Re: USB to S/PDIF adapter ? ...can you name some? - audioengr 15:36:05 10/30/04 (2)
  In Reply to: USB to S/PDIF adapter ? ...can you name some? posted by N.B.C. on October 30, 2004 at 13:18:59:

  If the S/PDIF cable is very short or non-existant, then it's jitter contribution is very small. The USB cable does not contribute to jitter, so it can be quite long - 25 meters max.
  
  

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  • One more question about non-existent S/PDIF cables - VinylNewbie 11:26:44 11/03/04 (1)
    In Reply to: Re: USB to S/PDIF adapter ? ...can you name some? posted by audioengr on October 30, 2004 at 15:36:05:

    When you say that the coaxial cable could be non-existent, does that mean that Radio Shack RCA phono couplers, for example, could be used without any cable?

    RS doesn't give the specs for their coupler, but I assume I'm trying to find a 75 ohm device - but maybe because the "cable" is non-existent it really doesn't matter that much.

    I've heard that a Belden 1505F/Canare RCAP cable is pretty close to 75 ohms. Maybe a short run of that would also work.
    
    
    

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    • Re: One more question about non-existent S/PDIF cables - audioengr 10:34:39 11/07/04 (0)
      In Reply to: One more question about non-existent S/PDIF cables posted by VinylNewbie on November 03, 2004 at 11:26:44:

      No, when I say a non-existent cable, I mean that the interface is wired internally and does not need to meet the S/PDIF specification because there is no external cable.
      
      

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• USB to S/PDIF adapters - rkw 14:40:09 10/30/04 (0)
  In Reply to: USB to S/PDIF adapter ? ...can you name some? posted by N.B.C. on October 30, 2004 at 13:18:59:

  See the products at M-Audio , notably the Transit, Sonica Theater, and Audiophile USB. Also Creative Audigy 2 and Edirol .

  As for jitter, there was discussion in a recent thread .
  
  

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